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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Infrastructure Engineer - **Company:** Alter Domus Luxembourg S.à r.l. - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Active Directory, Artificial Intelligence, Amazon Web Services, Amazon Elastic Compute Cloud, Amazon S3, Microsoft Azure, Bash Shell, Cloud Computing, Cloud Engineering, Disaster Recovery, Distributed Systems, Domain Name System (DNS), VMware ESX Servers, Monitoring of Systems, Identity and Access Management, Virtual Private Networks (VPN), Python (Programming Language), Network Segmentation, Citrix Systems, OpenShift, Windows PowerShell, Ansible, Prometheus, Zero Trust Network Access, Virtual Local Area Networks, VMware Virtualization, VMware VSphere, Datadog, Load Balancing, System Availability, Grafana, HybridCloud, Firewalls (Computer Science), Amazon Virtual Private Cloud (VPC), Amazon Relational Database Service, Containerization, Kubernetes, Infrastructure Automation Frameworks, Information Technology, Nutanix, Cloudwatch, Terraform, AIOps, Dynatrace, Vmware - **Published:** October 6, 2026 - **Apply:** https://jobs.alterdomus.com/talentcommunity/apply/1402320733/?locale=en_GB ## About the Role * 5+ years of hands-on experience managing enterprise infrastructure in production environments. * Proven experience working in mission-critical, high-availability environments - financial services or similarly regulated sectors a strong plus. * Strong practical experience with AWS infrastructure: EC2, VPC, IAM, S3, RDS, Transit Gateway, Direct Connect, CloudWatch you have built and fixed things there, not just read about them. * Solid working knowledge of Azure and familiarity with GCP. * Heavy hands-on experience with Citrix distributed environments, Nutanix HCI and VMware vSphere/ESXi. * Working knowledge of networking: VLANs, firewalls, load balancers, DNS, VPN, and hybrid connectivity. * Experience managing Active Directory, Entra ID, IAM, PAM, SSO, and MFA. * Ability to work under pressure, prioritise competing demands, and make sound decisions fast. * Good-to-have scripting and automation: Bash, Python, PowerShell, Terraform, or Ansible. * Degree in Computer Science, Telecommunications, or equivalent hands-on background. Nice to Have * AWS Solutions Architect Associate/Professional or Azure Administrator certification. * Nutanix Certified Professional (NCP) or VMware VCP. * Kubernetes CKA certification. * Experience with monitoring stacks: Prometheus, Grafana, Datadog, Dynatrace, or similar. * Knowledge of ITIL practices applied in a real operational context. * Exposure to AIOps or AI-assisted monitoring tools. * Experience with DORA or GDPR compliance requirements. Your Profile * Action-oriented - you don't wait to be told twice and you follow through. You see something to improve, get your hands on it. * Calm under pressure, with good judgement in high-stakes situations. * Methodical but fast - you think before you act, but you act decisively. * Clear communicator, able to report status and progress to technical peers and managers alike. * Team player who shares knowledge and supports colleagues when things get tough. Comfortable with change - you adapt quickly when priorities shift. ## Description At Alter Domus, we are looking for a Infrastructure & Cloud Engineer who gets things done. Someone who rolls up their sleeves, digs into complex infrastructure problems, and owns them through to resolution. You will be part of a team operating mission-critical environments in the financial services sector where uptime, speed, and precision are non-negotiable. This is a hands-on role. You will be troubleshooting, building, improving, and maintaining infrastructure day to day, working under pressure, adapting quickly to change, and taking full ownership of the platforms you touch., * Operate, maintain, and continuously improve on-premises and cloud infrastructure across AWS and Azure. * Diagnose and resolve complex infrastructure incidents quickly and effectively, you are the person who finds the root cause and fixes it. * Implement infrastructure changes, upgrades, and improvements following change management processes in a regulated environment. * Build and maintain hybrid cloud connectivity between datacenters and cloud platforms. * Configure and manage high availability and disaster recovery mechanisms, ensuring RTO/RPO targets are always met. * Manage and improve Citrix, VMware virtualisation environments, SAN/NAS storage, and backup/recovery platforms. * Work with container platforms: deploy, troubleshoot, and maintain Kubernetes and OpenShift workloads. * Enforce security controls across infrastructure - network segmentation, Zero Trust, IAM, PAM, MFA and remediate vulnerabilities. * Automate repetitive operational tasks using scripting and IaC tools (Terraform, Ansible). * Monitor infrastructure health, respond to alerts, and drive proactive capacity and performance improvements. * Collaborate with architecture, security, and application teams to implement technical requirements correctly and on time., We are in the business of equity, in every sense of the word. For us, this means taking action to ensure every colleague has equal opportunity, valuing every voice and experience across our organisation, maintaining an inclusive culture where you can bring your whole self to work, and making Alter Domus a workplace where everyone feels they belong. We celebrate our differences, and understand that our success relies on diverse perspectives and experiences, working towards shared goals and a common purpose. We take pride in creating a workplace where all our people are empowered to be truly invested in the alternative and bring their whole selves to work. We are committed to ensuring a welcoming recruiting and onboarding process for everyone. Please contact our hiring team if you require any accommodations to make our recruitment process more accessible for you. (Alter Domus Privacy notice can be reviewed via Alter Domus webpage: https://alterdomus.com/privacy-notice/)